<template>
  <div class="tab-control">
    <div class="tab-control-item"
     :class="{active: currentIndex === index}"
     v-for="(item, index) in titles" :key="index"
     @click="itemClick(index)"
     >
      <span>{{item}}</span>
    </div>
  </div>
</template>

<script>
export default {
  name: 'IshopTabcontrol',
  props: {
    titles: {
      type: Array,
      default: []
    }
  },
  data() {
    return {
      currentIndex: 0
    };
  },
  methods: {
    itemClick:function(index){
      this.currentIndex = index;
      // 发出事件
      this.$emit('itemClick', index);
    },
  },
};
</script>

<style scoped>
.tab-control{
  display: flex;
  text-align: center;
  font-size: 15px;
  line-height: 40px;
  position: sticky;
  top: 0px;
  background-color: #fff;
  z-index: 9;
}
.tab-control-item{
  flex: 1;
}
.tab-control-item span{
  padding: 5px;
}

.active {
  color: var(--color-high-text);
}

.active span {
  border-bottom: 2px solid var(--color-high-text);
}

</style>